1. 24 th National Children’s Science Congress – 2016 Theme Science,Technology,Innovation for Sustainable Development 24 th National Children’s Science Congress – 2016 Theme Science,Technology,Innovation for Sustainable Development Y.B.Kannan Assistant Professor of Physics Arumugam Pillai Seethai Ammal College Tiruppattur – 630211 8870 7870 42

2. Food and Agriculture for Sustainable Development

3. Meaning of sustainable development Meets the needs of the present, without compromising the ability of future generations to meet their own needs.

4. Basic Problem

5. Problems affecting sustainable development - 1 Farmers woes

6. Problems affecting sustainable development - 2 Deforestation

7. Modern Gadgets

8. Problems affecting sustainable development - 3 Global warming

9. Problems affecting sustainable development - 4 Growth in world population

10. Problems affecting sustainable development - 5 Globalization – world politics

11. Problems affecting sustainable development - 6 Modernization – unwanted health problems

12. Problems affecting sustainable development  Farmers woes  Soil quality, pesticides,  Global warming  Climatic change  Flood and drought  Deforestation  Urbanization  Industrialization  Globalization  International politics  Junk food  Growth in population  Nucleus family

13. Problem solving! - Roof top garden

14. Why not roof top paddy field?

16. Hint from Nano technology

17. Nano Agriculture – may be a solution! No Tractor – only bull

18. Rooftop Paddy Field By Aswathi Krishna 27th December 2014 KOCHI: Roof-top farming may not be something new to people, but 56-year- old Keerthi Chandran’s farming methods may amuse even innovative farm enthusiasts. Atop his house and at a building constructed adjacent to it at Karikandan Para, Kozhikode, he grows all kinds of vegetables, along with paddy.

19. Importance of food Sufficient and variety of foods - meet their nutritional needs. Food is any substance, composed of carbohydrates, water, fats and/or proteins, that is either eaten or drunk by any animal, including humans, for nutrition or pleasure

20. Agriculture The science, art or practice of cultivating the soil, producing crops, and raising livestock and in varying degrees the preparation and marketing of the resulting products

22. வேளாண்மை, புராதனத் தொழில் - இன்று புறக்கணிக்கப்பட்ட தொழில்.... வேளாண்மை செய்பவனை மேலாண்மை செய்பவன் மிதிக்கிறான். ஆ. திருநாவுக்கரசன்

24. Need of the hour is ! Quality soil and Water with minerals

25. Why need soil test? Soil fertility in Tamil Nadu reduced by half in 30 yrs, says govt paper The Times of India, Jun 17, 2015. The Times of India,

26. Why fertility of soil is decreasing ? Organic content is reducing Indiscriminate fertilizer and pesticide usage Non-application of cow dung and dead plant

27. Desirable level of organic carbon in soil is 0.8 – 1.3 %. In 1971 it was 1.2% and in 2002 it was 0.68% Very worst is Madurai – 0.23 % Krishnagiri – 0.36% Erode and Velore above ideal limit 4.04 & 4.2% respectively.

28. Organic content Humus – decaying plant, earth worms, dead animals, micro organisms. Earthworms indicators of soil health – Guindy National Park has low count.

29. Healthy soil Healthy soil ideally has 25% air 5 – 10% of living organisms And remaining are organic matter Fertilizer is nothing but salt These salt prevents growth of micro organisms.

30. Pesticides Effects Chemical fertilizers percolate into ground and affects the quality of ground water not only in chemical farms but also nearby by organic farms.

31. To keep healthy soil Rotate crops to keep soil healthy Paddy followed by legumes – peanut

32. Bull instead of tractor urine and dung provides nutrients.

33. Ideas – Soil Testing 1. Get a trowel and a bucket. Be sure neither is rusty or made of galvanized (zinc-coated) metal, which could skew your results. 2. Scrape mulch and leaf litter from the soil surface. Dig out a wedge of soil about 6 to 8 inches deep, and set this wedge aside. 3. Now dig out a half-inch piece of soil from the hole and pour it into your bucket. 4. Repeat steps 2 and 3 at least a half-dozen times in different parts of the farm or garden so that the soil sample represents your whole garden when mixed. 5. Use your trowel to mix the soil together thoroughly. 6. Fill the soil sample bag or container with the mixed soil, complete the paperwork and mail it all off to the lab.

34. Video link – You tube www.youtube.com/watch?v=MhSfvTcsvSk

35. Ideas – Soil Testing Soil with pH of 7is neutral Less than 7 is acidic Greater than 7 is alkaline Potassium, phosphorus, magnesium, calcium, sulfur, lead and micronutrients

36. pH values Paddy pH 5.5 – 8.5 Maize pH 7.5 – 8.5 not much water is needed Pulses pH 5.5 – 7 with water storage Soyabean – 6.5 – 7.5 with good drainage water facility Ground nut 6 – 6.3 with good calcium and drainage of water.

37. School work instead of Home work

38. Minerals Testing - Water

39. Health of school students FOOD HABITS - MILLETS/JUNK FOOD CONSUMPTION OF WATER - COKE/BUTTER MILK STUDENTS WEARING SPECS, HEIGHT WEIGHT

40. More suggestions Interview leading farmers in and around your area and compare the similarities. Crop Storage Center visit - merits & Demerits Make enquiry about expiry dates, ingredients etc among the parents Availability of healthy foods in villages

41. “sustain” – not new to us பருவத்தே பயிர் செய்

42. THANK YOU